Content preparation system and content preparation method

Abstract

To provide a content preparation system that does not release a pressurizer when refilling contents, does not become bulky when taken home or stored by using a concentrated liquid for the contents, and makes it easy to prepare the concentration of the contents.SOLUTION: The content preparation system includes: an external container 13; an internal container 14 that partitions the inside of the external container 13 into a contents storage chamber Sc and a propellant storage chamber Sp with variable volume; and a double pressurized container 11 with a propellant P that pressurizes the internal container 14 to reduce the volume of the contents storage chamber Sc; concentrated liquid Cc that is filled in the contents storage chamber Sc; and a tap joint 20 that connects the double pressurized container 11 to a faucet J.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a content preparation system and a content preparation method in the technical field of discharging content by pressure. [Background technology]

[0002] Patent Document 1 discloses a refill aerosol system that has a parent container and a child container, each of which is fitted with an aerosol valve, and that can fill the child container with the content liquid of the parent container. In this system, the parent container has a content liquid storage section that stores the content liquid, and the external space (the space between the container and the content liquid storage section) is filled with a propellant.

[0003] The child container contains a child inner bag filled with the liquid content of the parent container, and the space between the child container and the child inner bag is filled with a propellant that pressurizes the child inner bag. The liquid content of the parent container is transferred to the child container by connecting the parent container and the child container via the actuator of the child container. This allows the liquid content to be sprayed from the child container by the pressure of the propellant in the child container.

[0004] Patent document 2 discloses a transfer and filling system comprising a parent container filled with contents for transfer and filling, including concentrated concentrate and liquefied gas, a child container which dilutes the concentrated concentrate transferred from the parent container and sprays the contents using the pressure of the vaporized gas of the liquefied gas transferred from the parent container, and a connecting means for connecting the parent container and the child container.

[0005] Patent Document 3 discloses a double pressurized container having an outer container, an inner container, and a lid that closes them. The lid is provided with an openable portion that is opened by a discharge member (valve) attached to the double pressurized container. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] WO2023 / 127035A1 publication [Patent Document 2] JP 2023-13425 A [Patent Document 3] JP 2020-19570 A Summary of the Invention [Problem to be solved by the invention]

[0007] In the refill aerosol system of Patent Document 1, the liquid content and the propellant are separated by an inner bag, so the propellant in the secondary container is not sprayed out. This allows consumers to transfer the liquid content from the primary container to the secondary container and use it repeatedly. However, the primary container is large in size to accommodate the liquid content required for multiple refills, which makes it difficult to carry home after purchase and bulky to store at home.

[0008] In the transfer and filling system of Patent Document 2, consumers can fill a child container with water as a diluent at home, and then fill it with concentrated concentrate and liquefied gas vapor (pressurizing agent) from a parent container, so the parent container does not need to be large. This means that it is not time-consuming to carry the product home after purchase, and it does not take up much space when stored. However, when filling the child container with water, the lid is removed and the product is filled under atmospheric pressure, so liquefied gas (propellant) is lost every time it is replaced. This pollutes the environment and is uneconomical.

[0009] The double pressurized container of Patent Document 3 can be reused by removing the valve and attaching it to a new double pressurized container after the contents have been used up. However, the outer container, inner container and lid are disposable.

[0010] The present invention aims to provide a content preparation system and a content preparation method that do not release a pressurizing agent when refilling the contents, and that use a concentrate (concentrated liquid) for the contents, which does not take up much space when carrying it home or storing it, and that allow consumers to prepare the contents at home. [Means for solving the problem]

[0011] The content preparation system 10, 10A of the present invention comprises an outer container 13, a double pressurized container 11, 11A equipped with a partition wall (inner container 14, piston 60) that divides the inside of the outer container 13 into a content storage chamber Sc and another chamber (pressurizing agent storage chamber Sp) in a manner that allows the volume of the chamber to change, and a pressurizing means (pressurizing agent P, spring) that pressurizes the partition wall (14, 60) so as to reduce the volume of the content storage chamber Sc, a concentrate (concentrated liquid Cc) to be filled into the content storage chamber Sc, and a faucet joint 20, 20A that connects the mouth 11a of the double pressurized container 11, 11A to a water faucet J.

[0012] In the content preparation system 10, 10A, the double pressurized container 11 is preferably provided with a valve (moving valve 30) that is closed by the pressure of the content storage chamber Sc and opens when the filling pressure from the outside into the content storage chamber Sc becomes higher than the pressure inside the content storage chamber Sc. On the other hand, the tap joint 20A may be provided with a valve (check valve 45) that is closed by the pressure of the content storage chamber Sc and opens when the filling pressure from the outside into the content storage chamber Sc becomes higher than the pressure inside the content storage chamber Sc.

[0013] It is also preferable that the double pressure vessel 11 is provided with a discharge valve 12 that can be detachably attached thereto, and that the valve is configured to be in an open state when the valve 12 is attached and in a closed state when the valve is detached.

[0014] A second embodiment of the content adjustment system of the present invention comprises an outer container 13, a partition wall (14, 60) which divides the inside of the outer container 13 into a content storage chamber Sc and another chamber (pressurizing agent storage chamber Sp) in such a way that the volume can be changed, a pressurizing means (pressurizing agent P, spring) which pressurizes the partition wall so that the volume of the content storage chamber decreases, a double discharge container 16, 16A, 16B, 16C equipped with a discharge valve 12, a concentrate Cc to be filled into the content storage chamber Sc, and faucet joints 20A, 20B which connect the double discharge container to a water faucet.

[0015] The partition wall may be a flexible inner container 14, and the pressurizing means may be a pressurizing agent P filled in a pressurizing agent storage chamber Sp formed of the space between the outer container 13 and the inner container 14. The partition wall may be a piston 60 that slides airtightly inside the outer container, and the pressurizing means may be a pressurizing agent P or a spring interposed between the piston 60 and the outer container 13.

[0016] The content preparation method of the present invention includes preparing a double pressurized container 11, 11A including an outer container 13, a partition wall (inner container 14, piston 60) that partitions the inside of the outer container 13 into a content storage chamber Sc and the other chamber (pressurizing agent storage chamber Sp) in a volumetrically variable manner, and a pressurizing means (pressurizing agent P, spring 63) that pressurizes the partition wall (inner container 14, piston 60) so as to reduce the volume of the content storage chamber Sc, filling a concentrate (concentrated liquid Cc) from the mouth 11a of the double pressurized container 11, connecting the mouth 11a of the double pressurized container 11, 11A to a water faucet J with a faucet joint 20, 20A, and filling the double pressurized container 11, 11A with tap water W. That is, the concentrate (concentrated liquid Cc) and tap water W for dilution are filled from the same portion.

[0017] In the second embodiment of the content preparation method of the present invention, a valve 12 is attached to a double pressurized container 11, 11A equipped with an outer container 13, a partition wall (inner container 14, piston 60) that partitions the inside of the outer container 13 into a content storage chamber Sc and another chamber (pressurizing agent storage chamber Sp) in such a manner that the volume of the outer container 13 can be changed, and a pressurizing means (pressurizing agent P, spring 63) that pressurizes the partition wall (inner container 14, piston 60) so that the volume of the content storage chamber Sc decreases, to prepare a double discharge container 16, 16A, fill the concentrate Cc through the valve 12, connect the valve 12 of the double discharge container 16, 16A to a water faucet J with a faucet joint 20A, and fill the double discharge container 16, 16A with tap water W. That is, the concentrate Cc and tap water W for dilution are filled through the same valve 12.

[0018] Another aspect of the content preparation method of the present invention is to prepare a double discharge container 16, 16A, 16B, 16C including an outer container 13, a partition wall (inner container 14, piston 60) that divides the inside of the outer container 13 into a content storage chamber Sc and another chamber (pressurizing agent storage chamber Sp) in a manner that allows the volume of the outer container 13 to vary, a pressurizing means (pressurizing agent P, spring 63) that pressurizes the partition wall (inner container 14, piston 60) so as to reduce the volume of the content storage chamber Sc, and a discharge valve 12, in which concentrate Cc is filled through the valve 12 of the double discharge container, the valve 12 of the double discharge container 16, 16A, 16B, 16C is connected to a water faucet J with faucet joints 20A, 20B, and tap water W is filled into the double discharge containers 16, 16A, 16B, 16C. Effect of the Invention

[0019] In the content preparation system of the present invention, consumers can fill the content storage chamber with a concentrate at home, and then fill the content storage chamber with tap water to prepare the content. Therefore, consumers only need to purchase the concentrate, which makes it easy to take home after purchase and does not take up much space when stored. In addition, since the interior of the outer container is divided into the content storage chamber and other chambers by a partition wall, even if a pressurizing agent is stored in the other chambers, there is no need to release the pressurizing agent, which is environmentally friendly and economical.

[0020] If the double pressurized container is provided with a valve that is closed by the pressure of the content storage chamber and opens when the filling pressure from the outside to the content storage chamber becomes higher than the pressure of the content storage chamber, the valve opens by the water pressure just by opening the handle or lever of a water faucet, and water can be filled into the content storage chamber, making the operation simple. When water is filled, the partition wall moves or deforms, increasing the pressure of the pressurizing means, and when it becomes equal to the pressure of tap water, filling stops, making it safe. The same effect can be achieved if the faucet joint is provided with a valve that is closed by the pressure of the content storage chamber and opens when the filling pressure from the outside to the content storage chamber becomes higher than the pressure inside the content storage chamber.

[0021] When the partition wall is a flexible inner container, and the pressurizing means is a pressurizing agent filled in a pressurizing agent storage chamber consisting of a space between the outer container and the inner container, metal parts such as springs are not required, and the double pressurized container is easy to recycle. Also, when the partition wall is a piston that slides airtightly inside the outer container, and the pressurizing means is a pressurizing agent interposed between the piston and the outer container, metal parts such as springs are not required, and the double pressurized container is easy to recycle. On the other hand, when the pressurizing means is a spring interposed between the piston and the outer container, the airtightness of the pressurizing agent storage chamber may be low. Also, a valve for filling the pressurizing agent into the pressurizing agent storage chamber is not required.

[0022] The content preparation method of the present invention has the same effect as the content preparation system described above. Furthermore, tap water can be filled in a short time and the content can be prepared. In the second embodiment of the content preparation method of the present invention, the consumer can fill the concentrate without removing the valve, and then fill it with tap water to prepare the content. In the other embodiment of the content adjustment method of the present invention (the method using a valved double pressure container), the consumer does not need to remove or install the valve, so it can be used easily. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1A is a schematic diagram showing one embodiment of a content preparation system of the present invention, and FIG. 1B is a partially enlarged view of the double pressurized container in FIG. 1A. [Diagram 2] FIG. 1 is a process diagram showing one embodiment of the content preparation method of the present invention. [Diagram 3] 3A and 3B are cross-sectional views showing the steps of another embodiment of the content preparation method. [Figure 4] 4A and 4B are cross-sectional views showing the next step of the content preparation method shown in FIGS. 3A and 3B. [Diagram 5] FIG. 5A is a cross-sectional view showing another embodiment of the double pressurized container according to the present invention, and FIG. 5B is a cross-sectional view showing the double pressurized container of FIG. 5A filled with contents. [Figure 6]FIG. 2 is a cross-sectional view showing a tap water filling step in another embodiment of the content preparation method of the present invention. [Figure 7] 7A and 7B are cross-sectional views of a dual-dispense container before and after filling with tap water, respectively. [Figure 8] FIG. 2 is a cross-sectional view showing a tap water filling step in another embodiment of the content preparation method of the present invention. [Figure 9] 9A and 9B are cross-sectional views of a dual-dispense container before and after filling with tap water, respectively. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] The content preparation system 10 shown in FIG. 1A includes a double pressure container 11, a concentrated liquid Cc filled in the double pressure container 11, a faucet joint 20 that connects the mouth 11a of the double pressure container 11 to a water faucet J, and a valve 12 that is attached to the double pressure container 11 and discharges the content C. In FIG. 1A, the valve 12 is removed from the double pressure container 11. After the double pressure container 11 is filled with the content C, the valve 12 is attached to the mouth 11a to form a double discharge container 16 (see valve attachment step S4 in FIG. 2). The valve 12 is equipped with a push button 23 that is attached to a stem 22 and operates the opening and closing of the valve 12. In the case of a new product, the valve 12 may not be necessary. In that case, it is purchased separately. The concentrated liquid Cc is filled in a concentrated liquid container 40. The concentrated liquid container 40 does not have to be an aerosol container having internal pressure, and may be, for example, a pump container that uses a pump to discharge the concentrated liquid Cc, or a container that is elastically deformed by a finger or hand to push out the concentrated liquid. The concentrated liquid container 40 may be partially or entirely transparent and have a scale so that the remaining amount and the filled amount can be easily seen.

[0025] The double pressurized container 11 is substantially the same as that described in Patent Document 3, except that it has a moving valve 30. That is, the double pressurized container 11 is composed of an outer container 13, a flexible inner container 14 housed in the outer container 13, a lid 15 closing the upper end openings 13c, 14c of the outer container 13, and a moving valve 30 that is closed by the pressure of the content storage chamber Sc and opens when the filling pressure from the outside to the content storage chamber Sc becomes higher than the pressure inside the content storage chamber Sc. The space between the outer container 13 and the inner container 14 is the pressurizing agent storage chamber Sp, and the internal space of the inner container 14 is the content storage chamber Sc. That is, the inner container 14 is a partition wall that divides the inside of the outer container 13 into the content storage chamber Sc and the pressurizing agent storage chamber Sp.

[0026] In FIG. 1A, the pressurizing agent P is filled in the pressurizing agent storage chamber Sp, but almost no contents C remain in the contents storage chamber Sc. Therefore, the left and right walls of the body of the flexible internal container 14 are in close contact with each other, and the contents C remain at the upper end of the contents storage chamber Sc (near the shoulder of the internal container). In this embodiment, the pressurizing agent P is the pressurizing means. When all the contents C are pushed out, the internal container 14 deforms irregularly and comes into close contact with the inner surface of the shoulder and the lower surface of the lid 15 (see imaginary line M). The pressure of the pressurizing agent P is, for example, about 0.05 to 0.3 MPa (gauge pressure) when there is no contents C. As the pressurizing agent P, a compressed gas such as air, nitrogen, carbon dioxide, oxygen, or hydrogen is used.

[0027] Both the outer container 13 and the inner container 14 are made of synthetic resin, particularly thermoplastic resin such as polyethylene terephthalate, polyethylene naphthalate, polyethylene, or polypropylene, and can be manufactured, for example, by placing a preform for the inner container inside a preform for the outer container and simultaneously blow molding the part below the shoulder.

[0028] 1B, the neck 14a of the inner container 14 is housed inside the neck 13a of the outer container 13, the flange 14b at the upper end of the neck 14a of the inner container 14 is engaged with the upper end of the neck 13a of the outer container 13, and the flange 15b of the lid 15 tightly seals the upper end opening 14c of the inner container 14 and the upper end opening 13c of the outer container 13. It is preferable that the flange 15b of the lid 15 is welded to the upper end of the inner container 14 and the upper end of the outer container 13 by ultrasonic welding or the like.

[0029] The cover 15 is composed of a bottomed cylindrical sealing part 15a inserted into the upper end opening 14c of the inner container 14, an annular flange 15b continuing to the upper end of the sealing part 15a, a fitting cylindrical part 15d rising from the bottom part 15c of the sealing part 15a, and a guide cylindrical part 15e extending downward from the bottom part 15c of the sealing part 15a. A claw 15f for holding the movable valve 30 is formed on the inside of the lower end of the guide cylindrical part 15e. The sealing part 15a functions to close the upper end opening of the inner container 14, i.e., the content storage chamber Sc, on the outside, and provides a space for accommodating the housing 24 of the valve 12 on the inside (here, inside the fitting cylindrical part 15d). Furthermore, the fitting cylindrical part 15d airtightly receives the passage cylinder 20c of the faucet joint 20 (see FIG. 2) and airtightly receives the housing 24 of the valve 12 (see step S4 in FIG. 2). This makes it possible to prevent leakage when filling the bottle with tap water W, and also to prevent leakage when the contents C are discharged by attaching the valve 12.

[0030] As described above, the flange 15b of the cover 15 seals the pressurizing agent storage chamber Sp formed between the outer container 13 and the inner container 14. The guide tube portion 15e is a portion that guides the vertical movement of the moving valve 30. The lower end of the guide tube portion 15e is a portion that comes into close contact with the upper surface of the seal plate 33 to form a seal when the moving valve 30 rises.

[0031] The bottom 15c of the sealing portion 15a is provided with an openable portion 15c1 that seals the content storage chamber Sc until it is opened by the housing 24 of the valve 12. In Figures 1A and 1B, the openable portion 15c1 is in an open state due to the insertion of the valve 12. A thin annular weakened line is formed between the openable portion 15c1 and the other parts of the bottom 15c.

[0032] The material of the lid 15 is a thermoplastic resin that has high thermal bonding with the outer container 13 and the inner container 14, and if the lid 15 is to be fixed by welding, it is preferable to use the same material as the outer container 13 and the inner container 14. The lid 15 may be bonded with an adhesive instead of being welded. The openable portion 15c1 may be omitted to allow communication between the top and bottom. In that case, the function of communication / blockage between the content storage chamber Sc and the outside is performed by the movable valve 30.

[0033] The movable valve 30 is composed of a base 31 having a cross shape in a plan view, a disk-shaped retaining plate 32 at the upper end of the base 31, and a seal plate 33 provided at the lower end of the base 31. The outer edge of the retaining plate 32 slides against the inner surface of the guide tube portion 15e to guide the vertical movement of the movable valve 30, and the lower surface of the outer edge engages with the claw 15f at the lower end of the guide tube portion 15e to regulate the lower limit position of the movable valve 30. A gap that allows the concentrate Cc and water W to pass through is partially provided between the retaining plate 32 and the inner surface of the guide tube portion 15e. The upper surface of the seal plate 33 abuts against the lower end surface of the guide tube portion 15e to perform a sealing function. In other words, a valve is formed between the lower end of the guide tube portion 15e and the movable valve 30, which is closed by the pressure of the content storage chamber Sc (pressure applied via the inner container 14 by the pressurizing agent) and opens when the filling pressure from the outside to the content storage chamber Sc becomes higher than the pressure of the content storage chamber Sc. This valve can also be said to be a check valve.

[0034] The upper protrusion 32a protruding upward from the retaining plate 32 of the movable valve 30 is intended to press down the movable valve 30 with the housing 24 of the valve 12 to maintain it in an open state when the valve 12 is attached to the double pressure vessel 11.

[0035] As shown in FIG. 1A, the faucet joint 20 is composed of a cylindrical peripheral wall portion 20a, an intermediate wall 20b provided in the vertical middle portion of the interior of the peripheral wall portion 20a, and a passage tube 20c protruding downward from the lower surface of the intermediate wall 20b. A hole 20b1 communicating with the passage tube 20c is formed in the center of the intermediate wall 20b. The upper part of the peripheral wall portion 20a is a faucet connecting portion 20a1 to be connected to a water faucet J, and a female thread 20a2 is formed on the inner surface of the faucet J to screw with the male thread of the faucet J. The faucet connecting portion 20a1 is not limited to the female thread 20a2, and can be formed in a shape that matches the faucet. The lower part of the peripheral wall portion 20a is a bottle mounting portion 20a3 to be connected to the double pressure container 11, and a female thread 20a4 is formed on the inner surface of the bottle mounting portion 20a3 to be screwed with the male thread on the outer periphery of the mouth of the outer container 13 of the double pressure container 11. An upper surface of the intermediate wall 20b is provided with an annular seal member 20b2 that is in liquid-tight contact with the lower end of the faucet J. An O-ring 20c1 is provided on the outer circumferential surface of the passage tube 20c to tightly contact and seal with the inner surface of the fitting tube portion 15d.

[0036] The valve 12 comprises a housing 24, a cap 19 for mounting the housing 24 on the outer container 13 of the double pressure container 11, a stem 22 housed within the housing 24 so as to be movable up and down, a spring 25 for biasing the stem 22 upward, and a stem rubber 26 for opening and closing a stem hole in the stem 22. The lower end of the housing 24 is an opening portion 27 for piercing the opening portion 15c1 of the lid 15. A housing holding member 19a is interposed between the cap 19 and the housing 24.

[0037] Next, referring to FIG. 2, a content preparation method using the content preparation system 10 will be described. First, the double pressurized container 11 is prepared, and the pressurized agent storage chamber Sp is filled with the pressurized agent P (preparation process). The valve 12 is not yet attached. The pressurized agent P is filled from the gap between the upper end of the lid body 15 and the outer container 13 by a method such as undercup filling before ultrasonic welding with the lid body 15 in a covered state. Then, ultrasonic welding is performed between the lid body 15 and the outer container 13 and between the lid body 15 and the inner container 14. Also, if the lid body 15 has an openable portion 15c1, the openable portion 15c1 is broken by piercing it, etc., and opened. When refilling the contents into the double discharge container after use, the valve is removed from the original double discharge container. The openable portion 15c1 has been opened, and the pressurized agent P remains filled.

[0038] In this state, the moving valve 30 is urged upward by the internal pressure, and a seal is formed between the seal plate 33 of the moving valve 30 and the lower end of the guide tube portion 15e of the lid body 15. In this state, the concentrated liquid Cc is dripped from the concentrated liquid container 40 into the mouth portion 11a of the double pressurized container 11 (more specifically, into the fitting tube portion 15d of the lid body 15) (concentrated liquid dripping step S1).

[0039] The dripped concentrated liquid Cc passes through the fitting cylinder 15d and the gap between the movable valve 30 and the guide cylinder 15e, and stops just before the seal plate 33. At this time, the amount of dripped concentrated liquid Cc can be appropriately adjusted.

[0040] Next, the tap joint 20 is placed on the top (mouth 11a) of the double pressurized container 11 and fixed, and the top of the tap joint 20 is fixed to the tap J (tap joint connection step S2). Then, the handle or lever of the tap J is operated to spray tap water W (tap water filling step S3). The arrows indicate the flow of tap water W. Since the tap water W has pressure, the moving valve 30 is pushed downward to create a gap between the moving valve 30 and the guide tube part 15e, and the tap water W and the concentrated liquid Cc are filled into the content storage chamber Sc through the gap. The concentrated liquid Cc is filled into the content storage chamber Sc while being mixed with the tap water W. As a result, the concentrated liquid Cc is filled into the content storage chamber Sc in a state diluted with the tap water W. Note that there is no valve 12 in the filling passage into which the tap water W is filled, and since the gap is the above-mentioned gap formed by the filling pressure of the tap water W, the tap water W can be filled in a short time and the content C can be prepared.

[0041] As the tap water W is filled, the inner container 14 gradually expands, the volume of the pressurizing agent storage chamber Sp decreases, and the internal pressure rises accordingly. Then, when the internal pressure is balanced with the ejection pressure of the tap water W, the moving valve 30 abuts against the lower end of the guide tube portion 15e, the sealing action works again, and no more tap water W enters. Therefore, the tap water W does not overflow, and it is safe. The pressure of general household tap water W is about 0.1 to 0.4 MPa. Therefore, when tap water W is filled, the internal pressure of the pressurizing agent storage chamber Sp rises to about 0.2 to 0.5 MPa.

[0042] Next, the tap joint 20 is removed from the mouth 11a of the double pressurized container 11. In this state, the movable valve 30 seals the gap with the guide tube portion 15e, so the contents C do not spray out. In this state, the valve 12 is attached to the mouth 11a of the double pressurized container 11 to form the double discharge container 16 (valve attachment process S4). When the valve 12 is attached, the opening portion 27 at the lower end of the housing 24 presses down the upper protrusion 32a of the movable valve 30, and the seal between the seal plate 33 of the movable valve 30 and the guide tube portion 15e of the lid body 15 is released. This allows communication between the inside of the housing 24 and the contents storage chamber Sc. However, since the stem 22 is not pressed down, the stem rubber 26 blocks the stem hole, so the contents C are not discharged.

[0043] Next, an actuator such as a push button (23 in FIG. 1A) is attached to the stem 22 of the valve 12. This completes the entire refilling process. Thereafter, as with normal aerosol products, the push button 23 is pressed down to eject the contents C from the nozzle. When the button is no longer pressed, ejection stops. Furthermore, if the valve 12 is accidentally removed while there is still contents C remaining, the movable valve 30 rises and seals the gap with the guide tube portion 15e, preventing the contents C from spraying out.

[0044] Next, another embodiment of the content preparation system and preparation method will be described with reference to Figures 3A, B and Figures 4A, B. This embodiment differs from the content preparation system 10 and content preparation method (steps S1 to 4) of Figures 1A and 2 in that the double discharge container 16 is formed by attaching a valve 12 to the double pressurized container 11, and is filled with concentrated liquid Cc and tap water W. The other points are almost the same as those of Figures 1A and 2. This content preparation system 10A includes a double discharge container 16 in which a valve 12 is attached to the double pressurized container 11, concentrated liquid Cc filled in an aerosol type concentrated liquid container 40A, a stem joint 50 (Figures 3A and 3B) that connects the stem 22 of the valve 12 to the stem 40c of the concentrated liquid container 40A, and a faucet joint 20A that connects the double discharge container 16 to a water faucet J. The stem joint 50 is used to transfer the concentrate under pressure through both stems 40c, 22 into the dual dispensing container 16 in a liquid-tight manner.

[0045] The double pressurized vessel 11 is substantially the same as the double pressurized vessel 11 in Fig. 1A. Therefore, the same reference numerals are given to the respective parts and detailed description is omitted. The valve 12 is also substantially the same as the valve 12 in Fig. 1A.

[0046] The concentrated liquid container 40A in Fig. 3A comprises a container body 40a filled with concentrated liquid Cc under pressure, and an aerosol valve 40b attached to its opening. The concentrated liquid container 40A is placed upside down so that the stem 40c of the aerosol valve 40b protrudes downward. The aerosol valve 40b uses a metered-volume valve, which makes it possible to prevent overfilling of the concentrated liquid Cc.

[0047] The stem joint 50 is substantially cylindrical, and has an upper container connection part 50a that is airtightly connected to the stem 40c of the concentrated liquid container 40A, and a lower valve mounting part 50b that is airtightly connected to the stem 22 of the valve 12. A disk-shaped gripping plate 50c is provided at the vertical middle part to facilitate easy handling with fingertips. The interiors of the container connection part 50a and the valve mounting part 50b are in communication with each other via a communication hole 50d.

[0048] The faucet joint 20A shown in Figures 4A and 4B is substantially cylindrical, and has an upper faucet connection part 41 to which a water faucet J is connected, a bottle mounting part 42 that holds the valve 12, and an intermediate wall 43 that separates them. A claw 44 that engages with the support part 13e of the outer container 13 is provided at the lower end of the bottle mounting part 42. A check valve 45 that allows water to flow toward the double pressure container side but does not allow water to flow in the opposite direction is provided on the upper surface of the intermediate wall 43. A recess 46 that allows the opening and closing part 45a of the check valve 45 to open and close is formed in the center of the upper surface of the intermediate wall 43, and a stem connection part 47 into which the stem 22 of the valve 12 is inserted is provided in the center of the lower surface. The recess 46 and the stem connection part 47 are connected by a communication hole 48.

[0049] Next, a method for preparing the contents will be described. First, a valve 12 is attached to the double pressurized container 11 to prepare a double discharge container 16 (see FIG. 3A). The pressurizing agent storage chamber Sp is filled with the pressurizing agent P by a method such as undercup filling. Then, the valve 12 is attached to the mouth portion 11a of the double pressurized container 11 in advance to prepare the double discharge container 16. This causes the openable portion 15c1 of the lid 15 to be opened. This allows the stem 22 of the valve 12 to be pressed down / released to switch between communication / blockage between the contents storage chamber Sc and the outside. In the case of refilling, the original valve 12 can be left attached.

[0050] 3A, the stem 22 is not pushed down, so the content storage chamber Sc is isolated from the outside (here, the stem 40c of the concentrated liquid container 40A). When the valve 12 is attached to the mouth portion 11a, the housing 24 pushes down the movable valve 30 to release the seal between the movable valve 30 and the guide tube portion 15e.

[0051] Next, the concentrated liquid container 40A is pushed down (see FIG. 3B). This pushes down the stem 22 of the valve 12, and at the same time pushes in the stem 40c of the concentrated liquid container 40A. This causes the concentrated liquid Cc to flow into the contents storage chamber Sc, pushing down the moving valve 30 with the pressure of the concentrated liquid container 40A, as shown by the arrow. That is, the concentrated liquid Cc is filled into the contents storage chamber Sc from the valve 12 of the double discharge container 16. When a predetermined amount of concentrated liquid Cc has been filled into the contents storage chamber Sc, the pushing down of the concentrated liquid container 40A is released. This closes the valve 12, and the aerosol valve 40b of the concentrated liquid container also closes.

[0052] After the filling of the concentrated liquid Cc is completed, the stem joint 50 is removed from the valve 12 of the double discharge container 16, the faucet joint 20A is attached to the valve 12, and the water faucet J and the double discharge container 16 are connected (FIG. 4A). In this state, the stem 22 of the valve 12 is pushed down, so there is a risk that the concentrated liquid Cc filled in the housing and the guide tube part 15e will flow back to the faucet side, but this is prevented by the check valve 45 of the faucet joint 20A, and the concentrated liquid Cc remains at the top of the inner container 14. Next, when the water faucet J is opened, the check valve 45 opens due to the pressure of the tap water W, and the tap water W fills the contents storage chamber Sc as shown by the arrow, pushing and expanding the contents storage chamber Sc (FIG. 4B). In the process, the concentrated liquid Cc and the tap water W mix, and the concentrated liquid Cc is diluted with the tap water W. The concentration of the diluted contents C can be adjusted appropriately by adjusting the amount of concentrated liquid Cc to be filled initially.

[0053] Next, referring to Figures 5A and 5B, another embodiment of the double pressure container used in the content preparation system of the present invention will be described. In the embodiment of Figures 1A, 3A, etc., the internal space of the outer container 13 is divided into a content storage chamber Sc and a pressurizing agent storage chamber Sp by the flexible inner container 14, but in the double pressure container 11A of Figure 5A, the inner container is omitted, and the inside of the outer container 13 is divided by a piston 60 so that pressure can be transmitted. In this embodiment, the outer container 13 is cylindrical, and the piston 60 is housed inside so as to be movable in the axial direction. Furthermore, the lid body 15A is welded to the outer container 13. A bottom lid 62 having a pressurizing agent filling valve 61 for filling the pressurizing agent P is attached to the bottom of the outer container 13 by welding or the like. The piston 60 consists of a concave pressure receiving portion 60a and a cylindrical portion 60b extending downward from its periphery. A recess 60c is provided in the center of the pressure receiving portion 60a to avoid interference with the lowered moving valve 30. The lid body 15 has a flat flange 15b and is substantially the same as that of the double pressure vessel 11 in Figures 1A and 1B, except that it is welded only to the upper surface of the outer vessel 13. The movable valve 30 is substantially the same as that of the double pressure vessel 11 in Figures 1A and 1B. The same parts are denoted by the same reference numerals and detailed explanations are omitted.

[0054] The outer container 13 and the piston 60 are preferably molded from synthetic resin and have a strength that does not deform due to the pressure of the pressurizing agent or the filling pressure of tap water. In this embodiment, the upper side of the piston 60 is the content storage chamber Sc, and the lower side is the pressurizing agent storage chamber Sp. The pressurizing agent P filled in the pressurizing agent storage chamber Sp is the pressurizing means. As the pressurizing means, a spring such as a coil spring (see symbol 63) can be used instead of the pressurizing agent P. The piston 60 can be provided directly in the outer container 13 so as to be freely slidable, or a cylinder that is a separate part from the outer container can be provided in the upper part of the outer container 13 so as to surround the valve 12, and the piston can be provided in the cylinder.

[0055] This double pressurized container 11A can be combined with the tap joint 20 of FIG. 1 before the valve is attached, or combined with the tap joint 20A of FIG. 4A-B after the valve is attached to form a content preparation system. Furthermore, the content C can be prepared by a method similar to that of FIG. 2, or FIG. 3A, B, FIG. 4A, B. FIG. 5A shows a state in which the pressurizing agent P is filled from the pressurizing agent filling valve 61 at the lower end, and the piston 60 has moved to the upper end of the outer container 13. The discharge valve 12 is not attached. In this state, the concentrated liquid Cc is dripped from the concentrated liquid container 40 into the double pressurized container 11A. The concentrated liquid container 40 is the same as that of FIG. 1A. The dripped concentrated liquid Cc is held on the seal plate 33 of the moving valve 30 (see tap joint connecting step S2 in FIG. 2). Next, the tap joint is connected and tap water is filled (see tap water filling step S3 in FIG. 2). As a result, the concentrated liquid Cc is diluted with tap water in the double pressure vessel 11B to prepare the content C, which is filled into the content storage chamber Sc above the piston 60. The piston 60 moves down to a position where it is balanced with the pressurizing agent P, as shown in FIG. 5B.

[0056] When in use, the valve 12 is attached as shown in Fig. 5B to form a double discharge container 16A, and an actuator such as a push button or a trigger-type sprayer is further attached to the stem 22. Note that, in the piston-type double pressurized container 11B of Fig. 5A as well, the valve 12 is attached in advance to form a double discharge container 16A, and then the concentrated liquid Cc can be filled from the concentrated liquid container 40 as in Figs. 3A and 3B, and tap water W can be filled as in Figs. 4A and 4B.

[0057] The faucet joint 20B used in the content preparation method shown in Fig. 6 comprises a faucet connecting part 41 attached to a water faucet J, a bottle mounting part 42 attached to the double-discharge container 16B, and an intermediate joint 51 connecting the two. In this embodiment, the faucet connecting part 41 and the intermediate joint 51 are fixed to each other, and the bottle mounting part 42 and the intermediate joint 51 are detachably connected. The faucet connecting part 41 and the intermediate joint 51 may be detachable. The double-discharge container 16B in Fig. 6 is an aerosol container with an integrated valve, in which a valve 12 for controlling the discharge / shutoff of the content is fixed to the container body.

[0058] The faucet connector 41 is made up of a fixing ring 41b fixed to the water faucet J by a set screw 41a, and an annular seal member 41c housed in the inner circumference of the fixing ring 41b. The set screw 41a also acts to prevent the seal member 41c from falling off. A male thread 41d is formed on the outer circumferential surface of the lower part of the fixing ring 41b. A retaining projection 41e is provided on the inner circumference of the lower end of the fixing ring 41b to prevent the seal member 41c from falling off.

[0059] The intermediate joint 51 has an annular base 51a, an inner cylinder 51b that sandwiches a seal member 41c between the base 51a and the faucet J, an outer cylinder 51c that has a female thread that screws with the male thread 41d of the fixing ring 41b, and a passage cylinder 51d that extends downward. The bottle mounting part 42 has a bottomed cylindrical body 42a and an opening / closing claw 42d that is provided on the outer periphery of the body 42a so as to be able to swing. A stem fitting hole 42c that fits with the stem 22 is formed on the lower surface of the body 42a. The depth of the stem fitting hole 42c is such that the stem 22 can be pushed down to open the valve 12 when the faucet joint 20B is mounted on the double discharge container 16B. The middle part of the opening / closing claw 42d is connected to the outer periphery of the cylindrical body 42a so as to be freely swingable, and a claw 44 is protruded from the lower end to engage with an annular groove 13f and a support part (symbol 13e in Figure 4) formed around the neck part 13a of the outer container 13 of the double discharge container 16B.

[0060] The cylinder 42a is formed with an accommodation hole 42a1 for accommodating a passage tube 51d of the intermediate joint 51. The outer peripheral surface of the passage tube 51d and the inner peripheral surface of the accommodation hole 42a1 may be joined with an adhesive or may be detachably fastened with male and female threads. A flow path 42b1 is formed in the center of the bottom wall 42b of the accommodation hole 42a1, which communicates the stem fitting hole 42c and the inside of the passage tube 51d. In addition, an annular step 42b2 on which a lid 45d is placed is formed slightly above the bottom wall 42b. This forms a space 42b3 in the lower part of the accommodation hole 42a1 for accommodating a check valve 45.

[0061] The check valve 45 allows water from the tap to pass through and prevents the concentrated liquid Cc from flowing back through the valve 12. In this embodiment, the check valve 45 comprises a valve body 45b that moves up and down within the cavity 42b3, and a spring 45c that biases the valve body 45b toward the lower end of the passage tube 51d. A donut-shaped lid 45d is inserted into the upper part of the annular step 42b2 to fix the valve body 45b and the spring 45c within the cavity 42b3. The lower surface of the lid 45d forms a valve seat with which the upper surface of the valve body 45b comes into close contact. A vertical groove 42b4 is formed on the inner peripheral wall of the cavity 42b3 to facilitate the flow of tap water through the outside of the valve body 45b.

[0062] As shown in Figure 7A, the double discharge container 16B has a container body consisting of an outer container 13 and an inner container 14 housed inside it, a valve 12 that closes the mouth 11a at the top end of the container body, and a pressurizing agent P filled in the pressurizing agent storage chamber Sp between the outer container 13 and the inner container 14. In Figure 7A, the inner container 14 has contracted due to the pressure of the pressurizing agent P, and concentrated liquid Cc is filled in the upper part of the contents storage chamber Sc, which is the internal space of the inner container 14. Note that Figure 7A can also be seen as the state after the contents have been discharged. In that case, the contents will remain in the upper space.

[0063] The outer container 13 is a container made of a thin metal plate, and a circular groove (annular protrusion on the inside) 13f for placing the valve 12 is provided at the bottom of the neck 13a. The inner container 14 is a flexible thin-walled, approximately cylindrical bag made of synthetic resin. In this embodiment, a bellows portion 14d is provided in the middle of the body of the inner container 14. Therefore, in a natural state, the upper end of the inner container 14 protrudes from the upper end of the outer container, making it easy to fill the undercup with the pressurizing agent P. The valve 12 is composed of a cylindrical housing 24 with a bottom, a stem 22 housed therein so as to be movable up and down, a spring 25 that biases the stem 22 upward, and a stem rubber 26 that closes the stem hole. The housing 24 has an outer peripheral wall 24a that fits with the inner surface of the mouth of the inner container 14, a top surface, and a rib that connects them. The valve 12 is fixed to the upper end of the outer container 13 by a mounting cup 28.

[0064] This valve 12 is equipped with a housing cover 29 that surrounds the housing 24. The housing cover 29 forms a flow path between itself and the outer peripheral surface of the housing 24, and has the effect of ensuring the flow path and facilitating the introduction of tap water into the inner container 14 even if the inner container 14 contracts significantly and irregularly, and facilitating the discharge of the contents prepared in the inner container 14 to the outside via the flow path. In addition, by providing the flow paths in a plurality of locations, the concentrated liquid Cc filled in a liquid-tight state in the inner container 14 and the tap water can be easily mixed. For this double discharge container 16B, a known one including the valve 12 can be used.

[0065] To fill the double discharge container 16B with the concentrate Cc, an aerosol type concentrated liquid container (40A in FIG. 3A) is connected to the stem 22 of the valve 12 via a stem joint (50 in FIG. 3A), and the concentrated liquid container is pressed down to fill the concentrate Cc under pressure into the double discharge container 16B. The stem joint and concentrated liquid container are then removed from the double discharge container 16B filled with the concentrate Cc, and the double discharge container 16B is connected to a tap joint 20B connected to a tap J as shown in FIG. 6, and tap water is filled from the tap J. As a result, as shown in FIG. 7B, a double discharge container 16B filled with the concentrated liquid Cc (contents) diluted with tap water is obtained. To connect the bottle mounting part 42 to the double discharge container 16B, the upper part of the opening and closing claws 42d of the bottle mounting part 42 is pinched as shown by the arrow N to spread the claws 44, and the force of the opening and closing claws 42d, which return to their original shape, engages with the annular groove 13f of the neck part 13a of the outer container 13.

[0066] Alternatively, the concentrated liquid Cc can be dripped into the intermediate joint 51 by attaching the intermediate joint 51 and the bottle mounting part 42 to the double discharge container 16B, and then the intermediate joint 51 is connected to the faucet connecting part 41 and filled with tap water. In this case, the concentrated liquid Cc can be dripped into the concentrated liquid container 40 in FIG. 1.

[0067] Fig. 8 shows a state in which tap water is being filled into a double discharge container 16C of a different type from that shown in Fig. 6 (tap water filling process) using a faucet joint 20B similar to that shown in Fig. 6. As shown in Fig. 9A, this double discharge container 16C uses a known double aerosol container having an outer container 13, an inner container 14, and a valve 12, and a pressurizing agent P is filled into a pressurizing agent storage chamber Sp between the outer container 13 and the inner container 14. The outer container 13 is a metal container with a tapered shoulder portion 13b at its upper end and a bead portion 13d formed at the upper end.

[0068] The valve 12 comprises a housing 24, a stem 22, a stem rubber 26, a spring 25, and a mounting cup 28 for fixing these to the container body. The housing 24 is cylindrical with a bottom, with a closed lower end, from which a rod 24c protrudes downward. An opening 24b is formed in the side wall of the housing 24, which communicates between the inside and outside of the housing 24. A tube or the like for guiding the contraction of the inner container 14 can be attached to the rod 24c, and the opening 24b in the side wall is a flow path that communicates between the inside of the inner container 14 and the inside of the housing 24. A housing holding portion 28a for holding the housing 24 is provided in the center of the mounting cup 28, and the outer periphery is fixed to the bead portion 13d by clinching.

[0069] As shown in Figures 8 and 9A, the gap between the mounting cup 28 and the upper part of the internal container 14 and the inside of the housing 24 are filled with concentrated liquid Cc. The concentrated liquid Cc can be filled in the same manner as in the embodiment of Figure 6. After filling with the concentrated liquid Cc, the tap joint 20B is used to connect to a tap J as shown in Figure 8, and tap water is filled into the internal container 14, whereby the concentrated liquid Cc is diluted with tap water, and the content C of an appropriate concentration can be filled into the content storage chamber Sc (see Figure 9B).

[0070] Although the preferred embodiment of the content preparation system and content preparation method of the present invention has been described above, the present invention is not limited to these, and various modified forms can be adopted within the scope of the invention. For example, in the above embodiment, the moving valve 30 is used to prevent the content from spraying out when the valve 12 is removed from the double discharge container 16, 16A, but the moving valve can be omitted. In addition, the openable portion 15c1 is provided in the lid body 15, but it is also possible to not provide the openable portion 15c1 and to have the inside of the fitting tube portion 15d communicate with the content storage chamber Sc from the beginning. Instead of the concentrated liquid Cc, a powder or gel that dissolves in water to become an aqueous solution (concentrate) can also be used. [Explanation of symbols]

[0071] 10, 10A Content Preparation System 11, 11A Double pressure vessel 11a Mouth 12 Valves 13 Outer container 13a Neck 13c Top opening 13e Support Department 14 Inner container (compartment wall) 14a neck 14b flange 14c Top opening 15 Lid 15a Sealing part 15b flange 15c bottom 15c1 Opened part 15d Fitting cylinder part 15e Guide tube 15f Claws J Faucet 16, 16A double discharge container 19 Cap 19a Housing holding member 20, 20A faucet joint 20a Peripheral wall part 20a1 Faucet connection part 20a2 female thread 20a3 Bottle attachment part 20a4 female thread 20b Intermediate wall 20b1 hole 20b2 Sealing material 20c passage tube 20c1 O-ring 22 Stem 23 Push Button 24 Housing 25 Spring 26 Stem Rubber 27 Opening section Cc concentrate W Tap water Sc Contents Containment Chamber Sp Pressurizing agent storage chamber C Contents P Pressurizing agent M Imaginary line showing inner container 30 Transfer valve 31 Base 32 Holding plate 32a Upper projection 33 Seal plate 40, 40A Concentrate container 40a Container body 40b Aerosol valve 40c stem 41 Faucet connection part 42 Bottle attachment part 43 Intermediate Wall 44 Claws 45 Check valve 45a Opening and closing section 46 Recess 47 Stem connection part 48 Communication hole 50 Stem joint 50a Container connection part 50b Valve mounting part 50c Picking plate 50d communication hole 60 Piston (compartment wall) 60a Pressure receiving part 60b Cylinder part 60c recess 61 Pressurizing agent filling valve 62 Bottom lid 63 Spring 16B Double discharge container 20B Faucet Joint 41a Setscrew 41b Fixing ring 41c Sealing material 41d Male thread 41e Anti-slip protrusion 42a cylinder 42a1 Storage Cave 42b Bottom wall 42b1 Flow path 42b2 Annular step 42b3 Blank space 42b4 Vertical groove 42c Stem fitting hole 42d Opening and closing claws 45b Valve body 45c spring 45d lid 51 Intermediate joint 51a base 51b Inner cylinder 51c External cylinder 51d passage tube 16C double discharge container 13b Shoulder 13d Bead section 13f Circular groove 14d Bellows section 24a Outer wall 24b opening 24c rod 28 Mounting Cup 28a Housing holder 29 Housing cover

Claims

1. a double pressurized container including an outer container, a partition wall that partitions the inside of the outer container into a content storage chamber and another chamber in such a manner that the volume of the content storage chamber can be changed, and a pressurizing means that pressurizes the partition wall so that the volume of the content storage chamber decreases; A concentrate to be filled into the content storage chamber; and a faucet joint for connecting the mouth of the double pressure vessel to a water faucet. Content preparation system.

2. The double pressurized container is provided with a valve that is closed by the pressure of the content storage chamber and opens when the filling pressure from the outside to the content storage chamber becomes higher than the pressure in the content storage chamber. The content preparation system according to claim 1 .

3. The tap joint is provided with a valve that is closed by the pressure in the content storage chamber and opens when the filling pressure from the outside to the content storage chamber becomes higher than the pressure in the content storage chamber. The content preparation system according to claim 1 .

4. The device is provided with a discharge valve that can be detachably attached to the double pressure container, and is configured so that the valve is in an open state when attached and in a closed state when detached. The content preparation system according to claim 2.

5. a double discharge container including an outer container, a partition wall that partitions the inside of the outer container into a content storage chamber and another chamber so that the volume of the content storage chamber can be changed, a pressurizing means that pressurizes the partition wall so that the volume of the content storage chamber decreases, and a discharge valve; A concentrate to be filled into the content storage chamber; A faucet joint for connecting the double discharge container and a water faucet. Content preparation system.

6. The partition wall is a flexible inner container, and the pressurizing means is a pressurizing agent filled in a pressurizing agent storage chamber formed of a space between the outer container and the inner container. The content preparation system according to claim 1 or 5.

7. The partition wall is a piston that slides airtightly inside the outer container, The pressurizing means is a pressurizing agent or a spring interposed between the piston and the outer container; The content preparation system according to claim 1 or 5.

8. A double pressurized container is provided, the double pressurized container being provided with an outer container, a partition wall which partitions the inside of the outer container into a content storage chamber and another chamber in such a manner that the volume of the content storage chamber can be changed, and a pressurizing means which pressurizes the partition wall so that the volume of the content storage chamber is reduced; Fill the double pressurized container with concentrate through its mouth, The mouth of the double pressure vessel is connected to a water faucet with a faucet joint; Fill the double pressurized container with tap water; Contents preparation method.

9. A double pressurized container is provided with an outer container, a partition wall that partitions the inside of the outer container into a content storage chamber and another chamber in such a manner that the volume of the outer container can be changed, and a pressure means that pressurizes the partition wall so that the volume of the content storage chamber decreases. A double discharge container is prepared by attaching a valve to the double pressurized container. Fill the concentrate through the valve of the double discharge container, The valve of the double discharge container is connected to a water faucet with a faucet joint, Fill the double discharge container with tap water; Contents preparation method.

10. A double discharge container is provided, the double discharge container being provided with an outer container, a partition wall which partitions the inside of the outer container into a content storage chamber and another chamber in such a manner that the volume of the content storage chamber can be changed, a pressurizing means which pressurizes the partition wall so that the volume of the content storage chamber decreases, and a discharge valve; Fill the concentrate through the valve of the double discharge container, The valve of the double discharge container is connected to a water faucet with a faucet joint, Fill the double discharge container with tap water; Contents preparation method.

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